[1] Safdarjang Hosp, Opthalmol, New Delhi, India
[2] Houston Methodist Res Inst, Oncol, Houston, TX USA
[3] Houston Methodist Hosp, Canc Ctr, Houston, TX 77030 USA
[4] Creighton Univ, Sch Med, Psychiat, North Platte, NE USA
[5] Univ Texas MD Anderson Canc Ctr, Lymphoma Myeloma, Houston, TX 77030 USA
[6] Great Plains Hlth, Canc Ctr, North Platte, NE USA